Just as it was announced last week that Square will become the mobile payment platform for Starbucks going forward, PayPal now has revealed it too has designs no the fastfood/payment game—its conquest: McDonalds.

PayPal, Reuters notes, "has already signed up more than 15 retailers, including Home Depot and Office Depot, to accept PayPal payments in their stores." McDonalds, however, would be PayPal's holy grail.

This is all well and good, and it will be interesting to see how it works out, but I can't help but wonder who will need to pay for their Dollar Menu snacks with a mobile payment app. [Reuters]